PNM Sterilizing Filters

For the sterilization of water, solvents, and aqueous liquids.

  • SVPs & LVPs
  • Diagnostics
  • Buffers
  • WFI, Water Purification
  • Non-protein solutions
  • Chemicals
Features and Benefits

Nylon 6,6PNM is a family of pharmaceutical grade Nylon 6,6 membrane sterilizing filters. 


  • Optimized for flow, high retention, and chemical compatibility
  • Flushed to remove manufacturing debris and reduce extractables
  • Pore sizes range from 0.10 to 0.65 µm


Filtration Area
PNM filtration area
View Data Sheet for further product information:
  • Integrity test specifications
  • Materials of construction
  • Operating parameters
  • Sanitization and sterilization
  • Regulation & compliance

PNM filters are validated using test procedures that comply with ASTM F 838-15(ae1) protocols for the determination of bacterial retention in filters used for liquid filtration. The challenge level is a minimum of 107 organisms per cm2 of filter media. CPF filters have > 7-log removal when challenged with the organisms listed below (0.10μm and 0.22μm meet the FDA definition of sterilizing grade filters). 

  • 0.10μm: Brevundimonas diminuta
  • 0.22μm: Brevundimonas diminuta
  • 0.45μm: Serratia marcescens
  • 0.65μm: Saccharomyces cerevisiae
Quality Assurance

PNM filters are 100% integrity tested. CPF filters are developed and manufactured under an ISO 9001:2015 certified Quality Management System and designed to be used in cGMP-compliant processes. 

PNM Cartridges 

Available from 5-40 inches in length with several end connections and O-ring options.  

PNM cartridge        Critical Process Filtration black and white capsule with etched logo 

PNM Capsules

These filters are PNM cartridges encapsulated in a polypropylene shell to minimize exposure to process fluids. A popular choice for single-use applications and can be disposed of easily. Sizes range from 2-30 inches in length. PNM Capsules are available pre-sterilized.

PNM capsule        Critical process black and white capsule with cutout to show cartridge etched logo

Why Choose Critical Process Filters?

Quality & Performance
  • Over 20 years of engineering and manufacturing the finest filters for critical applications. 
  • Compliance with industry standards required for your operation
  • Product optimization to meet your performance goals
  • ISO 9001:2015 certified Quality Management System
  • Appropriately rated clean room environment
  • Proven success in pharmaceutical and bioprocessing applications
Price Advantage

It's simple. Our products are very competitively priced. Learn more

Services & Support
  • Presales evaluations/recommendations by highly experienced Application Engineers 
  • Post sales support and trouble shooting
  • Testing & Analysis services (our site or yours)
  • Validation Services

Made in USA 800   90012015Large-(1)

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